Answers are grounded in this paper and cite their sources.
Condensation of 4‐bromo‐ ( 4 ) and 4‐nilro‐l,8‐naphthalimides ( 5 ) with 2‐aminobenzenethiol gave 4‐(2‐aminoulicnylthio)‐1,8‐naphthalimides ( 7 ). Cyclisalion of 7 by the: Pschorr reaction afforded benzo[ k,l ] thioxanthene‐3,4‐dicarboximides ( 8 ), also obtained by reaction ol amities with benzo[ k,l ] thioxanthene‐3,4‐dicarboxylie anhydride ( 11 ).
No takes yet. Share an insight, caveat, or question.
Grayshan et al. (1974) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: